LiveInterval.cpp File Reference

#include "llvm/CodeGen/LiveInterval.h"
#include "LiveRangeUtils.h"
#include "RegisterCoalescer.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/CodeGen/LiveIntervals.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SlotIndexes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/MC/LaneBitmask.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <iterator>
#include <utility>

Go to the source code of this file.

Functions
static void	stripValuesNotDefiningMask (unsigned Reg, LiveInterval::SubRange &SR, LaneBitmask LaneMask, const SlotIndexes &Indexes, const TargetRegisterInfo &TRI, unsigned ComposeSubRegIdx)
	For each VNI in SR, check whether or not that value defines part of the mask describe by LaneMask and if not, remove that value from SR.
static bool	coalescable (const LiveRange::Segment &A, const LiveRange::Segment &B)

Function Documentation

coalescable()

static bool coalescable ( const LiveRange::Segment &  A, const LiveRange::Segment &  B  )

inlinestatic

Definition at line 1157 of file LiveInterval.cpp.

References A, assert(), and B.

Referenced by llvm::LiveRangeUpdater::add().

stripValuesNotDefiningMask()

static void stripValuesNotDefiningMask ( unsigned  Reg, LiveInterval::SubRange &  SR, LaneBitmask  LaneMask, const SlotIndexes &  Indexes, const TargetRegisterInfo &  TRI, unsigned  ComposeSubRegIdx  )

static

For each VNI in SR, check whether or not that value defines part of the mask describe by LaneMask and if not, remove that value from SR.

Definition at line 872 of file LiveInterval.cpp.

References assert(), llvm::VNInfo::def, llvm::SlotIndexes::getInstructionFromIndex(), llvm::VNInfo::isPHIDef(), llvm::VNInfo::isUnused(), llvm::MIBundleOperandIteratorBase< ValueT >::isValid(), llvm::Register::isVirtualRegister(), MI, none, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LiveRange::removeValNo(), TRI, and llvm::LiveRange::valnos.

Referenced by llvm::LiveInterval::refineSubRanges().